Which factor determines the style of vinos generosos de licor?

The style of vinos generosos de licor is primarily determined by their final sugar content. These are sweetened wines that result from the addition of Pedro Ximénez or other sweet wines to vinos generosos, which are dry. This process of sweetening not only influences the overall taste profile of the wine but also categorizes it within the broader category of generosos de licor. The sweetness level plays a significant role in defining the wine's characteristics, including its body, flavor depth, and balance.

In the context of the other factors, while the grape variety, aging process, and fermentation method contribute to the overall quality and characteristics of the wine, it is the final sugar content that is the key differentiator for vinos generosos de licor. This aspect directly influences their classification and appeal, making it a defining characteristic that consumers and connoisseurs specifically look for when assessing these wines.